Permutation door-knob lock.



G. KATGHIR.

PERMUTATION DOOR KNOB LOOK.

APPLICATION FILED SEPT. 14,1914.

1 1 24,622. Patented Jan. 12, 1915.

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PERMUTATION DOOR KNOB LOCK.

APPLICATION FILED SBPT.14,1914.

1,124,622. Patented Jan. 12, 19 15.

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THE NORRIS PETERS 60., PHOTOLITHDV. WASHINGTON n r G. KATCHIR.

PERMUTATION DOOR KNOB LOOK.

APPLICATION FILED SEPT. 14, 1914.

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G. KATOHIR.

PERMUTAIION DOOR KNOB LOCK.

APPLIOATION TILED SEPT.14,1914.

1,124,622. I Patented Jan. 12,1915.

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THE NORRIS PETERS 50., PHOTO-LITHQ, WASHINGTON. D r:

TUNKTED STAlEd PATENT @Fldlfifl CLEMENT KATCI-IIR, OF GA'KWOOD,ILLINOIS.

PEBMUTATION DOOR-KNOB LGCK.

Application filed September 14-, 1914:.

To all whom it may concern:

Be it known that I, CLEMENT KA'roHm, a subject of the Emperor ofAustria-Hum gary. residing at Oakwood, in the county of Vermilion andState of Illinois, have invented certain new and useful Improvements inPermutation Door-Knob Locks, of which the following is a specification.

This invention relates to new and useful improvements in permutationdoor knob locks.

The primary object of the invention is to provide a permutation deviceupon the knob shank of a spring latch for doors and whereby both knobsof the door may be thrown out of operative engagement with the latchupon a predetermined positioning of the permutation members while uponreturning the permutation members to their proper positions, the latchmay be readily actuated for shifting the same in the door openingoperation.

A further object of the device is to provide a knob spindle having oneknob longitudinally shiftable thereon for operatively positioning alatch actuating member on either its operative or inoperative positionsupon first setting a proper combination upon permutation members carriedby the knob spindle.

A still further object is to provide a spring latch of substantially theusual construction, the same being secured to one side of the door andfreely operable by a knob and having a shiftable knob upon the outerside of the door adapted to be moved and out of operative engagementwith the latch upon properly setting permutation members journaled uponthe spindle and adjacent one of the knobs.

With these general objects in view and others that will appear as thenature of the invention is better understood the same consists in thenovel combination and arrangement of parts hereinafter fully described,illustrated in the accompanying drawings and pointed out in the appendedclaims.

In the drawings forming a part of this application and in which likedesignating characters refer to corresponding parts throughout theseveral views :Figure 1 is a large view of a door provided with thepresent invention and broken away upon the line of passage of thespindle therethrough, the outer door knob being shown in verticalSpecification of Letters Patent.

Patented Jan. 12, 1%15.

Serial No. 861,583.

section, the elements being shown in their operative latch actuatingpositions. Fig. 2

is a similar view with the spindle rotated a quarter turn from thatillustrated in Fig. 1 and showing the elements positioned incapable ofactuating the latch. Fig. 3 is a plan view of the lock casing with aportion of the front wall removed and showing the latch in its normalprojected position. Fig. 4 is a similar view but showing the latch asretracted. Fig. 5 is a central vertical longitudinal view of the devicetaken upon the axial line of the knob spindle, a portion of the doorbeing shown in section and with the elements positioned as shown in Fig.2. Fig. 6 is a similar view with the elements positioned as shown inFig. 1. Fig. 7 is a vertical transverse sectional view taken upon lineVHVH of Fig. 5. Fig. 8 is a similar sectional view taken upon linevilli-VH1 of Fig. 6. Fig. 9 is a perspective view of the spindledetached, and Fig.

10 is a perspective view of the latch actuator detached.

Referring more in detail to the drawings, it is designed to provide adoor herein illustrated at 10 with a lock casing 11 of substantially theusual construction and positioned upon one side of the door and thereprovided with a turn knob 12 whereby the spring latch or catch 13 may bereadily moved whenever desired from the interior of the room which isprovided with the said door. The said latch 13 is slidably mountedwithin the casing 11 and is normally projected by means of a leaf spring14 carried by the casing and engaging ashoulder 15 of the said latch.The usual turn yoke 16 is also provided within the casing with its hub17 journaled through the opposite sides thereof and having itsprojecting ends 18 operatively engaging the lugs 19 of the latch. A knob20 is provided upon the op posite side of the door and has a six sidedsocket or chamber 21 therein which slidably receives a correspondinglyshaped shank 22 and whereby the outer knob is slidably mounted upon thesaid shank and rotatable therewith. A spindle 23 of a generalcylindrical form is secured by means of a pin 2e within the centrallongitudinal bore 25 of the shank while the said spindle is journaledthrough an opening or perforation 26 of the door and then projectsthrough the casing 11 and the square central opening 27 of the yoke hub17. The said spindle is freely rotatable within the said doorperforation and casing and yoke opening upon being turned in eitherdirection by means of the outer knob 20 while the unattached end of thespindle is squared as at 28 and is fitted into an open four sidedlongitudinal bore 29 of the inner knob shank 30 and whereby as will beevident any turning of either of the knobs will result in a similaractuation .of the other knob.

The spindle 23 is provided with a longi tudinal side slot 31 withinwhich the latch actuator 32 is slidably mounted, one end portion of thesaid actuator as at 33 being square in cross section and adapted to bemoved within the end portion 34 of the slot 31 which is in the spindleend portion 28. The opposite end of the actuator is reduced and iscylindrical in form and constitutes a rod extension 35 which is slidablypositioned through a perforation 36 in an end cap 37 of the shank bore25, while the free end of the rod is headed as at 38 or otherwisepermanently secured to the outer shiftable knob 20. By this arrangementit will be seen that the actuator being slidable within the spindle slot31 is freely revoluble within the hub opening 27, when the squaredportion 33 of the actuator is positioned within the lock casing 11 andthe yoke hub 17 thereon and as illustrated in Figs. 3 and 5 of thedrawings. A project,

ing edge 39 is provided upon the actuator adjacent the square end 33thereof and upon sliding the actuator toward the knob 12, the edge 39 ispositioned within the yoke opening 27 and engages one of the corners 40thereof, as best illustrated in Fig. 4 and also shown in Fig. 6 and inwhich position the spindle is engageably secured to the turn yoke sothat any movement of either knob will actuate the said yoke foroperating the latch. The edge 39 projects from the peripheral plane ofthe spindle to the same height as the rib 41 of the said actuator andwhich rib is in alinement with the edge 39. The rib 41 is cut awayforming four spaced notches 42 upon the actuator, the bottom walls 43 ofwhich notches substantially conform to the periphery of the spindle. Twopermutation collars 44 are journaled upon the spindle between the doorand the knob 20 and are freely rotatable thereon whenever the actuatoris slidably positioned therethrough with any of its 5 notches 42 sopositioned as to receive the 46 of each of the collars are brought intoalinement with each other and with the said rib 41.

Rings 47 having similar perforations and notches as the collars 44 areinterposed between the said collars and also between the collars and thedoor and shank and are rigidly mounted upon the spindle 23. By thisarrangement it will be seen that with the elements positioned asillustrated in Figs. 1 and 6 and with the knob 20 pushed inwardly, thelatch actuator will be in engagement with the yoke hub for the readymanipulation of the latch upon a turning of either knob. The collars 44are at such a time preferably turned to any positions upon the outer twoof the actuator notches 42 so that the actuator cannot be longitudinallyshifted either accidentally or by an unauthorized person.

W hen desired to position the latch so that the knobs will be incapableof actuating the same, the permutation collars are turned so that thecollar notches 46 are in alinement with the actuator rib 41 and then theknob 20 is pulled outwardly to the position shown in Figs. 2 and 5 andat which time the spindle and actuator will freely turn within the yokeopening 27 and without in any manner influencing-the latch and in whichposition it will be evident that with the door closed and the latch inengagement with its keeper, it will be impossible to open the door. Thecollars 44 are provided with any desired permutation characters such asthe figures 47 being here illustrated as setting up a combination offour and seven upon the two collars as illustrated in Fig. 2 in order toallow the shifting of the actuator by the knob 20.

It will thus be seen that a lock structure is provided in which thepermutation members may be positioned upon either side of a door thatmay be desirable, the same being operable to permit one of the knobs tobe shifted for bringing both of the knobs either in or out of operativeconnection with the normally projected latch.

WVhile the forms of the invention herein shown and described are whatare believed to be preferable embodiments thereof, it is nevertheless tobe understood that minor changes may be made in the form, proportion anddetails of construction without departing from the spirit and scope ofthe invention as claimed.

What Iclaim as new is 1. In combination with a door having a latchcasing and a normally projected latch mounted thereon, a spindlerevolubly mounted through said door and casing and having a.longitudinal slide slot therein, a shank secured to the outer end ofsaid spindle, a knob having a socket therein slidably mounted upon saidshank and revoluble therewith, and a latch actuator slidably positionedwithin the said slot and rigidly secured at its outer end to the saidknob.

2. The combination with a door having a normally projected latch mountedthereon, a turn yoke for said latch having an angular openingtherethrough, a spindle eX- tending through said door and said yokeopening and being freely revoluble, a shank secured to the outerprojecting end of said spindle, a knob having a socket therein andslidably mounted upon said shank, a latch actuator slidably positionedupon said spindle and having its outer end secured to said knob andhaving a projecting edge adjacent its inner end portion adapted forengaging within the yoke opening when said knob is inwardly positionedupon the shank.

3. In combination with a latch having a turn yoke and a spindle freelyrevoluble through the said yoke, of a latch actuator slidably mountedupon the said spindle and provided with a plurality of side notches,permutation collars journaled upon said spindle and having inwardlyopening notches and being freely revoluble only when in alinement withsaid actuator notches the said actuator having a projecting rib adaptedfor slidable reception within the said collar notches when positioned inalinement therewith.

4:. A device of the class described comprising a door having aperforation therethrough, a latch casing upon said door, a normallyprojected latch within said casing, a turn yoke for said latch having arectangular opening therethrough, a spindle journaled through said doorperforation and projecting through said yoke opening and easing, a knobsecured to the projecting end of the spindle, the said spindle having anopen side slot therein substantially its entire length and terminatingwithin the said squared end portion, a shank having angular outer facesrigidly secured to the opposite end of said spindle and having a centralbore, a movable knob slidably mounted upon said shank, a latch actuatorslidably positioned within said spindle slot and rigidly secured to saidshiftable knob and having a projecting side edge slightly spaced fromits opposite end and adapted for engagement with said yoke whenpositioned through the said opening thereof.

5. In combination with a latch, and an operating yoke therefor having asquared opening in the hub portion, a revolubly mounted knob spindlepositioned in the squared opening of the yoke hub having a longitudinalside slot and one end of said spindle being rectangular incross-section, a knob rigidly secured to said squared end of thespindle, a latch actuator slidablymounted within said slot and having asquared end portion and a projecting side edge adjacent thereto, and ashiftable knob secured to the end of said actuator opposite to thesquared end thereof adapted to shift said latch actuator to position theprojecting side edge of said actuator into a corner of the squaredopening of the yoke to lock the spindle and yoke together to shift thelatch.

In testimony whereof I afiix my signature in presence of two witnesses.

CLEMENT KATCHIR.

Vitnesses E. M. JnFrnRs, Mrs. HARVEY J. OAKWoon.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of E's/cents,

Washington, D. C.

